Welcome to our store! [Extended Tool Life]: When your planer or trimming knife is no longer sharp after a long time of use, you can throw it away and replace it with a new one. Grinding Guide makes the blade as sharp as before, extending tool life. [High Quality Materials]: Chisel Sharpening Guide is made of steel materials high quality carbon. Not easy to rust, durable and long lasting. The bottom has a hardened steel wheel that won't wear out over time or form flat spots. [size]: total length 70mm width 40mm inside grip range 0 - 50mm grip range outer grip 36 - 86mm [choose the right angle]: by turning the screw cap, you can adjust the angle of the blade, sharpen the blade as needed, and finally slide the blade from back and forth on the grinding wheel until it is more precise and sharp. [wide application]: suitable for wood shears, planers, blades, engraving machines, cutting knives, iron flat, flat shear edges. Helps extend the life of many wood chisels and irons with perfect new edges. There may be size errors in the product you receive due to hand measurement. main The product you receive may be slightly different from the picture due to different monitors Thank you for meeting me, hope I can help you. Good life Actual quantity shipped: 1 piece(s) 100% satisfaction - Our customers are our priority. If you find any problems with the products after receiving the goods, such as damage and incorrect quantity, please contact us immediately. We do our best to provide you with satisfactory after-sales service